Prompt
Do I need a load balancer for one web app?
Latest observation
Oct 7, 2026
OpenAI APIWeb search: off
Not always.
For a single web app, you only need a load balancer if you have a reason for it, such as:
- Multiple app instances behind one endpoint
- High availability so traffic can fail over if one server dies
- SSL/TLS termination at the edge
- Health checks and automatic removal of bad instances
- Blue/green or rolling deployments
- Traffic routing across regions, services, or paths
You may not need one if:
- You have one server/container
- The app is small or internal
- You can tolerate some downtime
- You’re using a platform that already handles it for you, like:
- Heroku
- Vercel
- Netlify
- AWS ECS/App Runner
- Kubernetes ingress/service
- Cloud Run
Simple rule
- One instance, low traffic, okay with downtime → probably no
- More than one instance or need reliability/scaling → yes
If you tell me your setup, I can say whether you actually need one.